denis



2 S'heets-Sheet 2..

(No ModeL) ELB. DENIS. ENVELOPE.

Patented Mar. 5, 1895.

i NITED STATES PATENT OFFICE HARRY R. DENIS, OF NEW ORLEANS, LOUISIANA, ASSIGNOR TO HENRY DENIS, OF SAME PLAOE.

v ENVELOPE.

SPECIFICATION form'ng part of Letters Patent No. 535,275, dated March 5, 1895. Application filed September 24, 1894. Serial No. !323,945. (No model.)

.To otZZ whom it may cancer-n,.-

Be it known that I, HARRY R. DENIS, of New Orleans, Louisiana, have invented a new and useful Improvement in Envelopes, which is fully set forth in the following specification.

This invention relates to the construction of envelopes for commercial or express purposes, such as are intended for the secure inclosure of money and valuable documents.

In an application for patent filed by me on the lst day of September, 1894, Serial No. 521,937, I have described an envelope designed for the purposes above mentioned, the object being to efiect economy and Simplicity in Construction, convenience in use and security to the contents of the envelope. The present inventon has the same object and it contains certain features of the envelope described in the above application, to wit: a back portion or strip contnuous with the front portion, and running the full length of the envelope, and two (or more) flaps which are fastened together and folded as one in closing the envelope.

The present invention differs from that of my former application mainly in that the blank is so cut and the difierent elements thei-cof so folded as to constitute a double envelope or inclosure, affording additional security, while at the same time the form of the blank is such that the paper can be cut'to advantage, and that the paste or adhesive gum can be applied very expeditiously.

In the accompanying drawings which form part of this specification I have illustrated two forms of envelopcs constructed in accordance with the invention.

Figure l shows in plan the form of a blank. Fig. 2 shows the same after the first fold. Fig. 3 shows the same after the folding has progressed still further; and Fig. l is a longitudinal section, the envelope lying face downward. Fg. 5 is a plan View of another form of blank, and Fig. 6 is a plan View showing the envelope just before the final closing folds are made.

The blank for the envelope is formed of a single piece of paper and comprises five main strips or pieces A, B, O, D and E. Pieces A, C, D and E are side by side, while piece B eX- tends from the end of' piece A and is adapted to be folded upon the same on the line a. Part O has an upper fiap c and a lower flap o' while parts B and D have each a single flap marked b and d respectively. The arrangement of the flaps may be somewhat modified as hereinafter explained in describing Figs. 5 and 6. bring two or more flaps together to be united and folded as one in closing the envelope, and this object can be attained in different ways.

The surfaces upon which adhesive gum is to be applied are indicated by widely sepa rated shade lines, and it will be observed that the adhesive substanee covers or may cover the entire surfaces of the contiguous strips O,D and E, which, in the rnanufacture of the envelope are to be pasted to the strips with which they are brought in contact by the folding. This arrangement of the gunmed surfaces greatly facilitates the manufacture of the envelope, since the gum can be applied by a brush over the entire surfaces of O, D and E without the exercise of any particular care and in a very brief time. When the metallic seal (whose two members are designated by the lettersf, g) is used it is not necessary to gum the closing llap d.

The method of folding will be readily understood. Part B is first folded upon A along line a bringing the sheet into the position indicated in Fig. 2. The receptacle or pocket is between the part A, which is the front strip of the inner envelope, and part B, which is the inner` back strip of the same. Parts A and B are now folded upon C, along line h, and as the surface of C is coated with gum it adheres to the back of strip B. The bottom fiap c' is then folded upon and adheres to strip A. This position of the sheet is shown in Fig. 3. It only remains to lap the strips E, D around the inner envelope, the folds being made on lines tand 79 and the envelope is complete. These parts D, E constitute respectively the front'and back of the outer envelope and by reason of their gummed surfaces they adhere to the adjacentsurfaces of strips A and C respectively. Moreover, the part D covers the bottom flap c', which may be of any length andwhich thus becomes in- 'accessible from the outside and is moreover The object to be kept in View is to- IOO united on both faces to main strips which eX- tend thefull length of the envelope. It will thus be seen at a glance that it would be practically inpossible to get access to the contents of the envelope by the process of nngunning. The structure of the completed envelope is fully shown in Fig, 4:. j,

The lower plate f of the metallic seal (which is or may be constructed as described in Letters Patent No. 479975, granted August 2, 1892, to Henry Denis) is applied to the back of the envelope, its prongs passing through the three plies E, C, B. The upper plate g is applied .to the fiap d. In closing the envelope the stud g' is pushed through fiaps c, band the three flaps folded down as one, all parts of the envelope being thus connected through theinstrumentality of a single metallics'al. Flaps and b are prefera'bl y joined by noist ening the gun on the edge of the former, and fiaps b and d in like manner joined by moistening theg'un' on the edge of the former.

The manner of closing the envelope may be Varied. The ordinary mode of closing the envelope (by moistening a gummed fiap) may be used in connection with the metallic seal, in which case fiap c is provided with gum, and fiaps c and d (taking for example envelope with two closing fiaps, namely c and d) are first joined together by moistening gun on said edge of foriner, before closing the netallic seal; also, scaling waX can be used instead of the tnetallic seal if desired. Flaps c and d are joined together as described and scaling wax applied as usual. Again the envelope can be used Without any seal. In this case, said fiaps c and d are joined together as described, and the whole fastened down to the body of the envelope, the under edge of fiap c having been also 'provided With gum.

The envelope shown in Figs. 5 and 6 is in all essential respects the same as that described above, like parts being ;corre spondingly lettered. The blank is folded in precisely the manner already described and the two parts of the seal applied in the same way. The envelope when ready for use is as shown in Fig. 6. The differences are that the strip B has no end fiap, while strip E has an end fiap and strip D (Whichconstitutes the face ot' the envelope) has an extra fiap d'. g The main difference between these two envelopes is in closing. To close that shown in Figs.` 5

and 6 the auxiliary closing fiap d' is !noistened and folded. on line m upon fiap e which alone. closes the envelope. The three flaps c, d, e are then folded as on'e on line n which makes a second closing, and the whole then secured by the metallic seal.

The main advantages attending the use of this envelopej are that it is not only a double envelope with double closing fiaps, dac., but that the closing itself is double, and that also in closing, it has but one surface (namely that des'ig'nated by the letter d') to moisten, if a gun fastening is used in connection with the metallic fastening, and if not the closing of this envelope With the m'etallic seal alone is as secure. I v

Other modifications may be made in matters not essential to the objects of the inven- 1. A double" e nvlope ps of a' single sheet of 'paper'- and comprising four stripsor pices arranged side by side', and a fifthpiece continio'is with the' end of one ofthe .end 'strips or pi`sall fiye strips being of the length of the envelopa bottom fiap on one of the inside pieces, andtwo or rnore topor closing tlap's hayirg adhesive material and adapted tobe fastened together and folded as one in clos'ing the envelop; snbstantially as described. 1 g y y 4 2. A double ervelop'e forme d of a single piece of paper, the inner eiiylope being cotnpos'ed of the two strips Aand B joined end to end, the strip O adjacent to strip A and its bottom fiap folded upon said part A; and the oter envelope composed of st ipS D and E, the complete` envelope being provided with two clo'sing flaps adapted to be joined and folded as one, substantially as described; v 3. A blank for forming a double envelope, said blank being composed of three contiguousjstrips side' by 'side all having their surfaces gu mnie'd, two ungu' n med strips'arranged end to end and forming when folded the front and back of the inner enyelope,a bottom fiap on one of the gumtned strips, and two closing fiaps, substantiallyas described. g

In testimonywhereotlv have signed this specification in the presence of two subscribing witnesses.

I I I-IARRY R. DENIS.

witnesses: I

ROBERT A. PIPER, B. F. LEE.

IOO 

